Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

r"
"
g

Test String

Code Generator

Language

Generated Code

package main import ( "regexp" "fmt" ) func main() { var re = regexp.MustCompile(`Remarks: ([^\r]+)Members:`) var str = `GBRG0A 00005 JULIEx 11/27/17 11:03:12 X3311073-00X DAMAGE Dig No : X3311073 Rev : 00X Digstart: 11/27/17 11:01 Rcvd : 11/27/17 11:03 Priority: 0 Expires : 12/24/17 23:59 Org Dig: X3311073 Rcvd: 11/27/17 11:01 Firm : KNOX CONSTRUCTION Caller: DUSTIN KNOX CoAddr1: 1386 BRIDGEPORT RD City,St: MAQUON, IL Zip : 61458 Phone : 309-337-6576 Ext : Call Bk: Done For : PATTY BAILEY SiteCnt: DUSTIN KNOX Phone : 309-337-6576 County : KNOX Place: GALESBURG CIT Address: 522 ISLE ROYALE RD Subdiv : Cross: LOSEY ST Grids : T11NR01E09SW BestFit: 40.954957/-90.400618 40.954938/-90.399043 : 40.953819/-90.400632 40.953799/-90.399057 PreMark: YES Directional Boring: NO Depth>7Ft: NO Locatn : IN THE CITY OF GALESBURG, WrkType: FENCE POST INSTALLATION ***HIT LINE**** Extent : LOCATE: THE WEST SIDE OF THE HOUSE. Remarks: REFER TO DIG# X003241591 TO ALL COMPANIES, CALLER STATES HIT A : MISMARKED CENTURY LINK LINE. CREW IS ON SITE. CALLED IN BY DUSTIN. Members: COMC0A GBRG0A GSD0A GSD0B IPC6A SCNT3A USIC0A View map at: http://newtin.julie1call.com/newtinweb/map_tkt.nap?TRG=32WSVUQRTTVORRtwo2` for i, match := range re.FindAllString(str, -1) { fmt.Println(match, "found at index", i) } }

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/